1. Use a blender to puree the entire contents of the thawed box of frozen strawberries. 2. Add 1/3 cup pina colada mix and 2 cups of ice to the blender. 3. Cut the end off end banana-- set these pieces aside to use later as a garnish-- then put the bananas into the blender. 4. Blend on high speed until the ice is crushed and the drink is smooth. 5. Pour into two tall stemmed glasses, such as daiquiri glasses. 6. Slice each strawberry halfway up through the middle and add one to the rim of each glass. 7. Cut each banana slice halfway through the middle and add one to the rim of each glass next to the strawberry. 8. Top with whipped cream and serve with a straw.